Improvement in g rain-drills



NITED STATES AUGUSTUS HOFFMANN, OF HALF DAY, ILLINOIS.

IMPROVEMENT IN GRAIN-DRILLS.

To all whom it may concern:

Beit known that I. AUGUSTUS HOFFMANN, of the town of Half Day, Lake county, in the State of Illinois, have invented certain new and useful Improvements in Seeders; and I hereby declare that the following is a' true and exact description of the same, reference.

being had to the accompanying drawings, and to the letters-ot ieference marked thereon.

The nature ot' my invention consists in the use of certainnew devices in the construction and confined at their outer ends by the slotted tie t by means of screws passing through the slots into the ends of beams h. This arrangement enables the operator to raise or depress the beams h at pleasure. The opposite ends of' beams h are kept in position `by blocks of wood between them, through which an iron rod passes, the 10d being supported at its ends by pendants fastened to the sides ot' frame b.

These pendants have a slot in them, with a screw running through the slot, by the use of which the inner ends of beams l1. can be raised 4 orvlowereih To the beams lt the standards m are fastened.

.Td represents a 'foot-lever, having its fulcrumon the axle'g immediately in l'ront ofthe driver-s seat. .The outer end ot' lever d is hooked so as to hohl a. small chain which passes around tie a.. By the means ofthe lever d and the chain attached to it the tie a can be elevated ordepre'ssed. l

It represents two corrugated metal wheels, cut out at the center suiiciently to pass over the hub of wheel S, and fastened together at their inner edge, the outer wheel, R, being also securely attached to the spokes of wheel S.

\ rIhe wheels R are concentric, with radial corrugations in each, and are placed a little distance apart, the convex elevations in one being opposite to the concave depressions. in the other wheel. Between the two wheels 1t the lever O works,- as hereinafter described.

H represents the larger seed-box, and I the smaller, .H being intended for wheat, rye, and oats, and I for seed ot' less size. Each of the seed-boxes has a longitudinal bar passing through it, with one end projecting a little beyond the end ofthe box. These bars are penetrated by pinsat a snitabe distance apart, and

placed vertically, their object heilig to agitato the. grain in the boxes.

0 represents ahorizontal lever, which passes through slots in the ends ot' supports U and V. One end ot'lever O, being pointed, plays between the wheels R, from which it receives an oscillating horizont-ai motion. v'Ihe lever O Works on a pivot through the slot in U, and at the end next the seed-boxes H and I is divided into three laminated branches, the two upper branches embracing the projecting ends ot' the barsin H and I, beingiastened totlhem by bolts. The lowest branch is attached to a metal plate at the bottom of seed-box H. The object .of `this plate is to scatter the seed bythe. motion which it receives from lever O. The support U, to

which lever O is pivoted, rests in anopening l made in theA upper surface of frame'b, its inner end extending through the metal plate q, and is fastened to the vertical lever Y. (See Fig. 4.) The lever Y plays-laterally onv a pivot, t, which passes through plate q, and is designed to throw lever O in or out of gear with wheels R. Lever Y is heldin the desired position by a pin passing into either ot' the two holes made through plate q.

The letter L, Fig. 3, represents ajoiuted lever in the rear otseed-box H, and is intended by means ot' two metal rods, one at each end,

which connect it with the inclined board K inA box H, to increase or diminish the opening between K aiid theinner side otH, and thus regulate the passage of the seed to the earth.

Having thus described my machine, what I claim, and desire to secure by Letters Patent, 1s-

'lhe lever Y, in combination with p la'te q, supports Uand V, branch lever OI, and wheels R, the whole constructed and operated substantially as herein described.`

In testimony that 1 acknowledge the foregoing I hereby atiix my signature in. the presence of witnesses.

AUGUSTUS HOFFMANN.

Witnesses:V

4 LEWIS SoNsniNE,

F. SoNsHINE, J. A. WELLS. 

